topic Re: when vscan enable cifs shares too slow... in Network and Storage Protocols https://community.netapp.com/t5/Network-and-Storage-Protocols/when-vscan-enable-cifs-shares-too-slow/m-p/479#M49 <HTML><HEAD></HEAD><BODY><P><SPAN>With only a 100 Mbit connection to the virusscanner I would start checking if the network is full. If not then check if the virusscanner itself can handle the load and if the recommended settings have been set (</SPAN><A class="jive-link-external-small" href="https://now.netapp.com/Knowledgebase/solutionarea.asp?id=kb3378" target="_blank">https://now.netapp.com/Knowledgebase/solutionarea.asp?id=kb3378</A><SPAN>).</SPAN></P><P></P><P>Also check if the filer itself has a cpu bottleneck by comparing cpu usage with vscan off/on.</P></BODY></HTML> Thu, 26 Aug 2010 13:08:40 GMT pascalduk 2010-08-26T13:08:40Z when vscan enable cifs shares too slow... https://community.netapp.com/t5/Network-and-Storage-Protocols/when-vscan-enable-cifs-shares-too-slow/m-p/473#M48 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>I have trouble with virus scan option on my filer.</P><P></P><P>When I enable vscan option on N 3400 storage (I guess fas2040)&nbsp; cifs shares being very slowly. While browse directory, copy or open file directly. Users complain because of this situation.</P><P></P><P> EX: . if vscan off, my file copy transfer rate (from filer to my desktop)&nbsp; about 25-30 Mbps, if vscan on&nbsp; then file copy transfer rate decrease 700-800 Kbps. </P><P></P><P>My environment :</P><P></P><P>Antivirus Server : Mcafee Virus Scan Enterprise + Antispyware Enterprise 8.7.0i (default setting) -&nbsp; on Windows server 2008 r2 Ent.</P><P>Filer&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; : N3300 - Ontap 7.3.3</P><P></P><P>Connection :&nbsp; filer and A.Virus server are same local area and 100Mbit connection. Also my filer's 2 nics configured VIF multi mode. </P><P></P><P></P><P></P><P></P><P>vscan command print :</P><P></P><P></P><P><STRONG>filer&gt; vscan<BR /></STRONG></P><P><STRONG><BR /></STRONG></P><P><STRONG>Virus scanning is enabled.<BR /></STRONG></P><P><STRONG><BR /></STRONG></P><P><STRONG>Virus scanners(IP and Name)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; P/S Connect time (dd:hh:mm)&nbsp; Reqs&nbsp;&nbsp;&nbsp; Fails&nbsp;&nbsp;&nbsp; Curr. Reqs.<BR /></STRONG></P><P><STRONG>-------------------------------------------------------------------------------------------<BR /></STRONG></P><P><STRONG> 10.2.65.166&nbsp;&nbsp;&nbsp;&nbsp; \\ITCserver&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Pri&nbsp;&nbsp;&nbsp; 01:22:19&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 234&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2<BR /></STRONG></P><P><STRONG><BR /></STRONG></P><P><STRONG>List of extensions to scan:<BR /></STRONG></P><P><STRONG> ???<BR /></STRONG></P><P><STRONG><BR /></STRONG></P><P><STRONG>List of extensions not to scan:<BR /></STRONG></P><P><STRONG> Extensions-not-to-scan list is empty.<BR /></STRONG></P><P><STRONG><BR /></STRONG></P><P><STRONG>Number of files scanned:&nbsp; 234<BR /></STRONG></P><P><STRONG>Number of scan failures:&nbsp; 3<BR /></STRONG></P><P><STRONG>Number of throttled requests:&nbsp; 0<BR /></STRONG></P><P><STRONG>filer&gt;</STRONG></P><DIV> </DIV><P>Not: Also I disabled vscan mandatory option. because sometimes users cannot access their files on filer.</P><P></P><P></P><P></P><P>I need your comments...</P><P></P><P></P><P>Thanks.</P></BODY></HTML> Thu, 05 Jun 2025 07:09:55 GMT https://community.netapp.com/t5/Network-and-Storage-Protocols/when-vscan-enable-cifs-shares-too-slow/m-p/473#M48 erkal 2025-06-05T07:09:55Z Re: when vscan enable cifs shares too slow... https://community.netapp.com/t5/Network-and-Storage-Protocols/when-vscan-enable-cifs-shares-too-slow/m-p/479#M49 <HTML><HEAD></HEAD><BODY><P><SPAN>With only a 100 Mbit connection to the virusscanner I would start checking if the network is full. If not then check if the virusscanner itself can handle the load and if the recommended settings have been set (</SPAN><A class="jive-link-external-small" href="https://now.netapp.com/Knowledgebase/solutionarea.asp?id=kb3378" target="_blank">https://now.netapp.com/Knowledgebase/solutionarea.asp?id=kb3378</A><SPAN>).</SPAN></P><P></P><P>Also check if the filer itself has a cpu bottleneck by comparing cpu usage with vscan off/on.</P></BODY></HTML> Thu, 26 Aug 2010 13:08:40 GMT https://community.netapp.com/t5/Network-and-Storage-Protocols/when-vscan-enable-cifs-shares-too-slow/m-p/479#M49 pascalduk 2010-08-26T13:08:40Z